This is the reason why I'm wait for last version in 29 july. RTM+updated sub-build. Maybe will be ISO in 29 july or later.
Current MS policy seems to be a never ending W10 for a long period of time. Going back into history many projects have been altered into something else if it turned out to be obsolete or out of date etc.
No they mean windows as a service will be ever evolving but not with new oses every few years. This will be it and it was designed so that changes can be made to it forever...or so says the plan.
thats why have also make the windows insider builds ..i think they start make updates like 10.1 / 10.2 i believe and going on ..
As xinso and others stated several times, it can be found in a XML in \$Windows~BT\sources\Panther\ folder.
Not for imaging onto new PC's, 10240 is the master image that OEM's are loading onto PC's to ship on the 29th, AKA RTM
right now OEM earn money from computer possible 800Dollars + Win 10 ? its too early for some1 buy win 10 except the techinals and supporters..